And after checking out all nine favorites on Business Insider, we couldn't help but notice a recurring theme: they're all super outdoorsy. (Not quite as outdoorsy as these hotel rooms, but they do come close.)

This whimsical seashell-shaped home in Casa Caracol in Isla Mujeres, Mexico comes with access to a private pool and is located on a private gated property. The architects live on the same property, so you could pick even their brains about the home's quirky design.

Treehouses seem to be the stuff of dreams in Airbnb world, and this two-person shack in Florence, Italy is one of the most sought after. We understand why. Visitors also get access to the property's olive trees, garden, tennis court and pool.

Another Italian treehouse makes an appearance in the top 5. This one is located in San Salvatore Monferrato, Alessandria, and sits in the middle of an expansive garden with uninterrupted views of the Italian hills.